Home / 214,907.78-321,918.66-125,891.43

Finding the Fourth Proportional to 214,907.78, 321,918.66 and 125,891.43

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Solution

The fourth proportional to 214,907.78, 321,918.66 and 125,891.43 is: 188,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,907.78 : 321,918.66 = 125,891.43 : x
  2. Step 2: Convert to fraction form
    214,907.78/321,918.66 = 125,891.43/x
  3. Step 3: Cross multiply
    214,907.78x = 321,918.66 × 125,891.43
  4. Step 4: Simplify right side
    214,907.78x = 40,526,800,451.08
  5. Step 5: Solve for x
    x = 40,526,800,451.08/214,907.78
  6. Step 6: Final answer
    x = 188,577.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.